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(No Model.) 5 Sheets-Sheet 1.

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GAS MACHINE.

No. 275,060. Patente d Apr. 83.

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(No Model.) 5 Sheets-Sheet 2.

H. S. MAXIM.

GAS MACHINE. No. 275,060. Patented Apr. 3, 1883 N. VEYERS, Fholn-Lilhflgmpher. Washinglon. D. c

(No Model.) 5 Sheets-Sheet 3.

H. S. MAXIM.

GAS MACHINE.

No. 275,060. Patented Apr. 8, 1883.

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GAS MACHINE.

(No Model.)

.No. 275,060. Patented Apr.3, 1883.

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( 0 Model.)

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GAS MAGHINE.

No. 275,060. Patented Apr. 3,1883.

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UNITED STATES PATENT QFFicE.

HIRAM S. MAXIM, OF BROOKLYN, NEW YORK.

GAS-MACHINE.

SPECIFICATION forming part of Letters Patent No. 275,060, dated April 3, 1883.

7 Application filed January 20, 1882. (No model.)

To all whom it may concern Be it known that I, HIRAM S. MAXIM, a citizen of the United States, and a resident of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Gas-Machines, of which the following is a specification, reference being had to the drawings accompanying and forming a part of the same.

In former patents granted to me, and in applications for patents by me made, gas-machines are shown and described in which a volatile hydrocarbon'such as gasoline-is vaporized, mixed with a definite proportion of air or steam, and stored for use, these several operations being carried out by means'of automatically-operating mechanism of special construction. Upon such machines my present invention is an improvement, the features of novelty comprising mainly an apparatus for the automatic regulation of steam admitted to the injector, mechanical appliances for opening and closing the ports through which the steam is admitted, and other details of construction, all of which will be more fully hereinafter set forth and claimed.

In the accompanying drawings, illustrative of my invention, Figure l is a side view, in elevation, of the apparatus com plete,includin g the gas-holder. Fig. 2 is a sectional view of the same; Fig. 3, a plan view of details of mechanism connected with and operated by the gas-holder for the purpose of operating the valves 5 Fig. 4, a section on line as a: of Fig. 3; Fig. 5, a section on line y y of Fig. 4:; Fig. 6, a vertical section of a portion of the steamregulating apparatus. Figs. 7 and 8 are details in elevation and section, respectively, of portions of the valve-regulating mechanism.

Similar letters of reference indicate corresponding parts in all the figures.

Referring to Figs. 1 and 2, A designates a gas-holder fitting into a tank or receptacle, A, adapted to contain water, and within which are two upright tubes, at a, communieatin g respectively through the bottom of tank A with the supplypipe and the gasmachine. A centrally-placed tube in the holder permits it to pass over an upright support, I), as has been fully explained in my former patents.

The apparatus for the manufacture of the gas is as follows:

B is a steam-chamber, into which steam is admitted through the port b.

(J O is a valve-ste|n arranged to slide in proper ways or bearings, and forming a needlevalve. The backward movement of the stem (1 is limited by an adjustable stop, d, and it is shifted in position to open or close the aperture c by means of a toe, c, operated by a crank, c, and working between lugs or stops on the stem, as shown in Fig. 2.

The above-described valve opens into a chamber,D, normally closed by a spring-valve,

.F, against the admission of air, and communicating with the tank A by a tube, D, placed in line with the needle valve or injector, and D forming a prolongation of the first. At or near thejunction of these two tubes is an enlargement of tube D, forming an annular chamber,

0, which communicates by a number of passages with the interior of tube D, and by a tube,f, and valve mechanism with a tank containing gasoline. (Not shown in the drawings.)

Combined with tubef, through which, as above stated, the gasoline is introduced, is a valve consisting of a screw-stem, f, which is arranged to close, to a greater or less degree, the bore of the tube. In order toiudicate the position of the valve, or the quantity of liquid which it allows to flow, a disk, 9, is fixed in a convenient position around the screw-stem, and a pointer, 9, attached to the projecting end of the stem. The periphery of the disk may he graduated in any manner desired, so that the position of the valve-stem will be indicated by the position with reference thereto of the pointer. The valve may be readily set for the admission of any desired quantity of liquid.

The operation of the devices thus fardescribed is as follows: Steam is admitted to the chamber B, and the crank 0 turned to the left to open the valve 0. The jet of steam issuing therefrom passes through pipe D, drawing along with it air through the valve F, the quantity of air being determined by proper adjustment of the spring retaining the same. At the end of tube D the commingled steam and air draw in the gasoline through the annular chamber 6 and vaporize it, the force of the steam being sufficieut to impel the mixture through the cooling tube D into the lower part of tank A, by which it is deprived of too nearly all moisture, and then up into the gasholder A, causing the same to rise.

,tube is provided near its upper end with an inlet, H, and an outlet, H,and between them is a valve-seat having a valve, 70. Tube G is mounted on a box, G, containing a flexible diaphragm, K. Passing through said diaphragm, and firmly connected therewith by means of plates of metal, It" 70, is a rod, L, serving as a stem for valve k. The lower projecting end of the stem L rests in a seat in block L, carried by a weighted lever, M, pivoted in the usual manneriu standards L,one only of which is shown. Under normal conditions the lever forces the stem L upward and maintains the valve is open; buton the admission ofsteam through H the pressure in the tube G and diaphragm-chamber Gr forces down the diaphragm and stem L against the weight of lever M. By this action the valve is is closed until an equilibrium between the pressure of the steam and the force exerted by the lever and diaphragm is established, and

7 this is maintained, so that the pressure of steam in chamber B is always the same.

With the tube G may be connected a steam-- gage, h, by an extension, h, as shown in Fig. 1, when it is desirable toindicate the pressure of the steam.

To the tank A is securely fixed a frame, M,

carrying the valve-closing mechanism;

M is a lever swinging freely on a rockshalt, m, passing through the frame. The said lever carries at its end a frame, m m, between the two sides of which and on the rockshat't is a short arm or stop, N, between a shackle, N, thatforms one part of a toggle, the otherpart of which is formed by the fiat steel springs n n and brass rod n, attached to head n", and arranged to slide in the opposite head 0. The end of stop N has two forks at the end, between which works a lug or cross-piece, 0, so that as the toggle passes the center it will act upon the stop or arm N with a slight blow and turn the rock-shaft m. This movement is availed of to open or close the steam and gasoline valves in the following manner: An arm, P, is fixed to the shaft m, and to it is connected the end of a rod, E, the other end of which connects with the crank 0. It is evident, therefore,when thelever M is raised by the holder A in the usual manner that the movement of rotation imparted to shaft m by the toggle will be such as to force the rod E and crank 0 to the right, and thus close the jet or valve 0, and also that the reverse of this will take place when the lever is lowered by the holder.

To the shaft m is also fixed a lever, 0, re-

sembling a walking-beam, to one end of which a rod, F, is connected. This rod is formed in two portions, connected by aspring preferably inclosed in a box, F, the purpose of which is not to obstruct suddenly the movement of the lever O and shaft m. The lower portion of the rod passes into a casing, F wherein is a chamber havingan inlet and outlet, as shown, one of which, asf is formed as a valve-seat, which may be closed by the end of the rod F. The casing F forms a part of the gasolinetubef.- When the holder A has been raised to a predetermined point, and it is desirable to stop the flow of gas, the rod F will be lowcred by the lever or walking-beam O, which is turned with the shaft m, and so close the openingf cutting off the fiow of the liquid.

To the long end of the walking-beam O a rod, 0, is connected, which passes downward through a slot in the elongation p of the weighted lever M. Near its end is fixeda stop, p, by means of which the rod and its end of the lever O are raised when the lever Mis in its normal position. The utility of this arrangement is very great, for in the event of.

the steam being suddenly shut 05 the end of the lever M at once acts to shut off the supply of gasoline and close all the valves. An additional advantage of this arrangement arises from the fact that when the apparatus is inactive the lever M acts to keep the spring in casing or box F under compression. As soon as steam is admitted the lever is forced downward, and the spring, being suddenlyreleased, assists in turning the shaft m and opening the valves. Provision is thus made for all contingencies likely to arise, except failure of the valve-closing mechanism to operate. With a view to this possibility I may combine with the devices already described one or both of the safety devices illustrated in Figs. 2 and 5. The first consists of an arm, S, extending out at right angles from the holder A, and carrying a pendent rod,S,having an adjustable stop, 8. The rod S may pass in the vicinity ofor through some of the arms connected to shaft m in such manner that the stop 8 will by engagementtherewith raise the same, and thus close the valves at the predetermined limit of upward motion of the holder. The rod S is shown in this case as passing through an arm, T, fixed at one end to the shaft m, and connected at the other with the piston-rod T of a dash-pot, e, the functions of which are to prevent too rapid movement of the several portions of the apparatus. In lieu of this, or in addition thereto, may be used the mechanism illustrated in Fig. 5, and consisting in the main of an arm, R, fixed to rock-shaft m, and a forked lever, B, having arms 1* 1", which may swing freely on a shaft in the fixed frame M. The lever R is connected with arm R by a pin that works in a slot, as shown. A pin-roller, or other suitable device, r, capable of adjustment in the frame M, extends between the forks r r and operates to raise or lower the same, according to the position of the tank and lever M This device,

as has been set forth in other applications and in a patent granted to me, is intended to 0perate on the failure of the other mechanism to perform its allotted functions.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a machine for manufacturing gas from volatile oils, the combination-of a steam-chamher, an automatic regulator for maintaining an even pressure in said chamber, apparatus. for mixing air with the steam as it issues from the steam-chamber, apparatus for saturating the mixed steam and air with a hydrocarbon vapor, a condensing tube or pipe, and a storagetank, these parts being constructed and combined for operation in substantially the manner hereinbefore set forth.

2. In an apparatus for the manufacture of gas, the combination, with the chamber D and steam-jet entering the same, of a tube or pipe, D, a tube, D, of smaller diameter, united thereto and projectinginto its end, and an annular chamber, 0, communicating with the interior of said pipe D, and a gasoline-supply pipe, f, connected with the annular chamber, substantially as set forth.

3. In a gas-machine, the combination, with the arm or walking-beam O and rock-shaft m, of valve mechanism for controlling the admis- 'sion of a volatile liquid connected to one end of said walking-beam, a rod, 0, depending from the opposite end of the same, and a weighted lever, M, in conjunction with the pressure-diaphragm K, these parts being combined for operation substantially in the manner set forth. p

4. The combination, with arm P and rockshaft m, of a steam-Valve, c", stem G, and mechanism,consistin g essentially of a rod and lever, connecting the arm P with the stem 0, whereby the position of the latter may be controlled by that of the arm, substantially as and for the purpose set forth.

5. In an apparatus for the manufacture of gas, substantially as described, the combination, with rock-shaft m, and an arm, T, fixed thereto, of a movable storage-tank, a rod, S, extending or depending from said tank, and a stop, 8, fixed thereon, substantially as and for the purpose set forth,

HIRAM S. MAXIM.

Witnesses:

Row. M. HOOPER,

DAVID T. S. FULLER. 

